# Copyright 2021 The Kubeflow Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for kfp.containers._component_builder module."""
import mock
import os
import shutil
import tempfile
import unittest

from kfp.containers import _component_builder
from kfp.containers import _container_builder
from kfp import components

_TEST_TARGET_IMAGE = 'gcr.io/my-project/my-image'
_TEST_STAGING_LOCATION = 'gs://my-project/tmp'


def test_function(
    test_param: str,
    test_artifact: components.InputArtifact('Dataset'),
    test_output: components.OutputArtifact('Model')
):
  pass


class ComponentBuilderTest(unittest.TestCase):
  def setUp(self) -> None:
    self._tmp_dir = tempfile.mkdtemp()
    self._old_dir = os.getcwd()
    with open(os.path.join(os.path.dirname(__file__), 'testdata',
                           'expected_component.yaml'), 'r') as f:
      self._expected_component_yaml = f.read()
    os.chdir(self._tmp_dir)
    self.addCleanup(os.chdir, self._old_dir)
    self.addCleanup(shutil.rmtree, self._tmp_dir)

  @mock.patch.object(
      _container_builder.ContainerBuilder,
      'build',
      return_value='gcr.io/my-project/my-image:123456',
      autospec=True
  )
  def testBuildV2PythonComponent(self, mock_build):
    self.maxDiff=2400
    _component_builder.build_python_component(
        component_func=test_function,
        target_image=_TEST_TARGET_IMAGE,
        staging_gcs_path=_TEST_STAGING_LOCATION,
        target_component_file='component.yaml',
        is_v2=True
    )

    with open('component.yaml', 'r') as f:
      actual_component_yaml = f.read()

    self.assertEquals(actual_component_yaml, self._expected_component_yaml)